I wouldn't call breaking the agitator a success. I recently picked up an old A502 in Santa Monica that was listed in the Craigslist "free" section. My thought was to take its Bakelite agitator out for use in my A700, replace it with a turquoise Powerfin, and then give it to someone else. It was very stuck, and it quickly became apparent that the force required to remove it would risk breaking it. So I left it in the machine when I passed it on. Those Bakelite agitators are extremely rare. What a tragedy to break one over a lint filter assembly. Lint filters turn up pretty regularly, but Bakelite agitators? Good luck finding one of those. And as for gluing it, I've never found a glue that will work worth a darn on Bakelite, but maybe someone else has an idea. It would be fantastic if they do and you can save it. I'll keep my fingers crossed for you on that one.
The tub to pump hose on the 142(pn 211107) is another story. It's the same as the one used on the A700 and cross references to the hose used on the A806 and later. You'll have no trouble finding that for around twenty dollars and less depending on how well you look around.